Japan: Major Banking Groups
- Mitsubishi-Tokyo Financial Group (see principal finance subsidiaries below)
- Bank of Tokyo-Mitsubishi (lead bank)
- Mitsubishi Trust and Banking Corporation
- UnionBanCal Corporation / Union Bank of California
- Mitsubishi Securities
- DC Card
- Diamond Lease
- BOT Lease
- Sumitomo Mitsui Financial Group (see principal finance subsidiaries below)
- UFJ Holdings (see principal finance subsidiaries below)
- Mizuho Financial Group (see principal finance subsidiaries below)
- Resona Holdings (see principal finance subsidiaries below)
Japan: Other Trust, Long-Term Credit, and Commercial Banks
- Mitsui Trust Financial Group
- Shinsei Bank (formerly Long Term Credit Bank)
- Nomura Trust and Banking Co.
- Orix Trust and Banking
- Shinkin Trust Bank
- Aozora Bank (formerly Nippon Credit Bank)
- The Master Trust Bank of Japan
- Japan Trustee Services Bank
- Trust and Custody Services Bank
- IY Bank
- Sony Bank
- E-Bank
- Nippon Shinko Bank
- Norinchukin Bank
Japan: Regional Banks
- Chiba Bank
- The Bank of Yokohama
- Shizuoka Bank
- The Bank of Fukuoka
- The Hokkaido Bank
- The Aomori Bank
- The Michinoku Bank
- The Akita Bank
- The Hokuto Bank
- The Shonai Bank
- The Yamagata Bank
- Yamaguchi Bank
- The Bank of Iwate
- The Tohoku Bank
- The 77 Bank
- The Toho Bank
- The Gunma Bank
- The Ashikaga Bank
- Joyo Bank
- The Kanto Bank
- The Musashino Bank
- The Chiba Kogyo Bank
- Tokyo Tomin Bank
- The Daishi Bank
- Hokuetsu Bank
- Yamanashi Chuo Bank
- Hachijuni Bank
- The Hokuriku Bank
- The Toyama Bank
- The Hokkoku Bank
- The Fukui Bank
- The Suruga Bank
- The Shimizu Bank
- The Ogaki Kyoritsu Bank
- Juroku Bank
- Mie Bank
- The Hyakugo Bank
- The Shiga Bank
- The Bank of Kyoto
- The Bank of Osaka - See Kinki Osaka Bank
- The Bank of Ikeda
- The Nanto Bank
- The Kiyo Bank
- The Tajima Bank
- The Tottori Bank
- The San-in Godo Bank
- The Chugoku Bank
- The Hiroshima Bank
- The Awa Bank
- Hyakujishi Bank
- The Iyo Bank
- The Shikoku Bank
- The Chikuho Bank
- The Bank of Saga
- The Eighteenth Bank
- The Shinwa Bank
- The Higo Bank
- The Oita Bank
- The Miyazaki Bank
- The Kagoshima Bank
- Bank of The Ryukyus
- The Bank of Okinawa
- The Nishi-Nippon Bank
Secondary Regional Banks
- Sapporo Hokuyo Holdings
- Yamagata Shiawase Bank
- The Shokusan Bank
- The Kita-Nippon Bank
- The Sendai Bank
- The Fukushima Bank
- The Daito Bank
- The Towa Bank
- The Tochigi Bank
- The Ibaraki Bank
- The Tsukuba Bank
- The Keiyo Bank
- The Wakashio Bank
- The Higashi-Nippon Bank
- The Tokyo Star Bank
- The Kanagawa Bank
- The Taiko Bank
- The Nagano Bank
- The First Bank of Toyama
- The Ishikawa Bank
- The Fukuho Bank
- The Shizuoka Chuo Bank
- The Chubu Bank
- The Gifu Bank
- The Aichi Bank
- The Bank of Nagoya
- The Chukyo Bank
- The Daisan Bank
- The Biwako Bank
- Bank of Kinki - See Kinki Osaka Bank
- The Namihaya Bank
- The Bank of Kansai
- The Taisho Bank
- The Nara Bank
- The Wakayama Bank
- The Midori Bank
- The Hanshin Bank
- The Shimane Bank
- Tomato Bank
- The Setouchi Bank
- The Hiroshima-Sogo Bank
- The Saikyo Bank
- The Tokushima Bank
- The Kagawa Bank
- The Ehime Bank
- The Bank of Kochi
- The Fukuoka City Bank
- The Fukuoka Chuo Bank
- The Saga Kyoei Bank
- The Bank of Nagasaki
- The Kyushu Bank
- The Kumamoto Family Bank
- The Howa Bank
- The Miyazaki Taiyo Bank
- The Minami-Nippon Bank
- The Okinawa Kaiho Bank
- The Yachiyo Bank
Japan: Credit Card and Consumer Finance Companies
- Aeon Credit Service
- JCB Card
- SMBC Card (formerly Daiwa Card Service)
- Credit Saison
- Pocket Card Co.
- Takefuji
- Aiful
- ACOM
- Promise
- Shinki (affiliate of Shinsei Bank)
- A Plus (affiliate of Shinsei Bank)
- Credia
- OMC Card (Formerly Daiei OMC Card)
- UFJ Nicos
Japan: Specialty Finance Companies
Japan: Banking-related resources
- Bank of Japan
- Financial Services Agency
- Japan Bank for International Cooperation (JBIC)
- Development Bank of Japan (DBJ)
- Japanese Bankers Association
- Regional Banks Association of Japan
- The Second Association of Regional Banks
- The Government Housing Loan Corporation
- Deposit Insurance Corporation of Japan